Fifa president Sepp Blatter has warned Europe's richest soccer clubs he is ready to go to "war" if they refuse to release players for international matches.
The club versus country battle has been brought sharply into focus this month in a court case where Belgian club Charleroi have demanded compensation from Fifa after one of their players, Abdelmajid Oulmers, was injured playing for Morocco in 2004.
Soccer: Fifa's Blatter wields club
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